About: http://webisa.webdatacommons.org/149426567

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	In one embodiment, cations such as calcium may be provided for methods and compositions of this invention from feldspars such as anorthite.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca